CN202683963U

CN202683963U - Casting mold of turbine case of compressor for airplane

Info

Publication number: CN202683963U
Application number: CN 201220172948
Authority: CN
Inventors: 黄丁保; 刘庆平; 刘宇; 李昌海; 石强; 汪兵
Original assignee: ZHONGXIANG DONGFANGHONG FOUNDRY FACTORY
Current assignee: ZHONGXIANG DONGFANGHONG FOUNDRY FACTORY
Priority date: 2012-04-13
Filing date: 2012-04-13
Publication date: 2013-01-23
Anticipated expiration: 2022-04-13

Abstract

The utility model discloses a casting mold of a turbine case of a compressor for an airplane. A lower mold is arranged on a prying template, a loose core is inserted in the prying template and the central hole of the lower mold in an inversion shape, an annular loose piece is arranged in the central hole of the lower mold, a closed sand mold core is fixed on the lower mold, the annular portion of the closed sand mold core is sleeved on the loose core, an open sand mold core is fixed on the outer side of the bottom of a sand mold core in a large annular drum shape, a sand mold core in a small annular drum shape is fixed on the inner side of the lower portion of the sand mold core in the large annular drum shape, and the sand mold core in the large annular drum shape is sleeved in the central hole of an upper mold. The casting mold has the advantages of being high in filling and feeding capacities, superior in exhaust and dross floating capacities, good in vortex and disorder control, capable of low-pressure casting and suction casting, stable in casting mold size, good in replicability, energy-saving and environment-friendly, high in cost performance and capable of effectively guaranteeing the product percent of pass.

Description

The aircraft casting casting mold of compressor wheel volute

Technical field

The utility model relates to the technical field of mould, more particularly relates to the technical field of casting mould.

Background technology

The aircraft compressor housings is container and the support framework that the compression pump assembly of compressed-air power is made in aircraft air-operated control and enhancement of environment, version is divided into " middle lower house is combined " and " upper, middle and lower shell combination type " two large classes, and the requirement of product is to have support, resistance to compression and airtight three-dimensional function.Its operating pressure by zero point several Mpa do not wait to several Mpa, limited by space, weight indicator, claimed structure is meticulous and weight is light and handy, general compactness, complexity, high-strength, thin-walled, gently little, dexterous high-end aluminium alloy I, the II class casting structure pattern of all being designed to, its selection is considered preferred by the two-way combined factors of operating pressure and environment temperature: generally choose with ZL101A/JB/T6 when low temperature, low pressure and get final product; Generally select ZL205A/JB/T5 when low temperature, high pressure; Then need select ZL201A (ZL201)/JB/T5 during medium and high temperature even select ZL207/T1.Housing pressure-bearing and sealing ability must not be less than the operating pressures of compressor, and the wall thickness of housing is generally in 3～4mm scope.At present, usually adopt the expensive moulds such as model casting, low pressure casting, vacuum suction and adjustable pressure casting to cast, not only cast the cost height, and mould dimension is unstable, replicability is bad, and product percent of pass is lower.

The utility model content

The purpose of this utility model provides a kind of casting cost low in order to solve above-mentioned deficiency exactly, and mould dimension is stable, and replicability is good, and can effectively guarantee the casting casting mold of the aircraft usefulness compressor wheel volute of product percent of pass.

The technical solution that the utility model adopts in order to solve the problems of the technologies described above is as follows:

The aircraft casting casting mold of compressor wheel volute, it mainly includes looses core, the sled template, counterdie, the ring-type loose piece, the closed chamber sand core, loose piece, fill out the molding sand core, spacious chamber sand core, little cylinder shape sand core, large cylinder shape sand core and patrix, described sled template, offer respectively corresponding centre bore on counterdie and the patrix, counterdie places on the sled template, loose core to be and be inverted in the centre bore that shape is inserted into sled template and counterdie, described ring-type loose piece is positioned at the centre bore of counterdie, the closed chamber sand core is fixed on the counterdie and its ring-type position is nested with on loosing core, the described molding sand core of filling out is fixed on the patrix by loose piece, described patrix places on the counterdie by aliging with the centre bore of counterdie, described spacious chamber sand core is fixed on the bottom outside of large cylinder shape sand core, described little cylinder shape sand core is fixed on the lower inside of large cylinder shape sand core, and this large cylinder shape sand core is nested with in the centre bore of patrix.

It also includes protective plate, and this protective plate cover is put on the closed chamber sand core.

The beneficial effect that the utility model adopts above-mentioned technical solution to reach is: this mould adopts the gravity direct casting of verting of single-point center, the bottom adopts 360 degree total radiations to fill type, polycyclic blind riser feeding technology is adopted on top, it is strong that it fills the type feeding capacity, exhaust, scum silica frost ability are excellent, eddy current and disorder are controlled well, have also realized sequentially casting and consecutive solidification; This mould has been abandoned the model casting of common employing, low pressure casting, the vacuum suction, the thinking of the expensive mould such as adjustable pressure casting and equipment, but adopt manually, simple and easy and cheap metal mold exterior mold and overlay film sand core module foundry engieering, mould dimension is stable, replicability is good, energy-conserving and environment-protective, cost performance are high, can effectively guarantee product percent of pass.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model spray;

Fig. 3 is the split type perspective view of the utility model.

The specific embodiment

By Fig. 1, Fig. 2 and shown in Figure 3, the aircraft casting casting mold of compressor wheel volute, it mainly includes looses core 1, sled template 2, counterdie 3, ring-type loose piece 4, closed chamber sand core 5, protective plate 6, loose piece 7, fill out molding sand core 8, spacious chamber sand core 9, little cylinder shape sand core 10, large cylinder shape sand core 11 and patrix 12, described sled template 2, offer respectively corresponding centre bore on counterdie 3 and the patrix 12, counterdie 3 places on the sled template 2, loose core and 1 be and be inverted in the centre bore that shape is inserted into sled template 2 and counterdie 3, described ring-type loose piece 4 is positioned at the centre bore of counterdie 3, closed chamber sand core 5 is fixed on the counterdie 3 and its ring-type position is nested with and is loosing core on 1, protective plate 6 covers are put on closed chamber sand core 5, the described molding sand core 8 of filling out is fixed on the patrix 12 by loose piece 7, described patrix 12 aligns by the centre bore with counterdie 3 and places on the counterdie 3, described spacious chamber sand core 9 is fixed on the bottom outside of large cylinder shape sand core 11, described little cylinder shape sand core 10 is fixed on the lower inside of large cylinder shape sand core 11, this large cylinder shape sand core 11 is nested with in the centre bore of patrix 12, as seen from the figure, gap between above-mentioned each part is the foundry goods die cavity, during the demoulding, the sled template 2 that prizes under the counterdie 3 gets final product 1 extraction of will loosing core, open patrix 12, the sand core of around the foundry goods and the inside is smashed to be finished foundry technology process again.

During the demoulding, that takes out first mold bottom looses core 1, then patrix 12 is separated with counterdie 3, the molding sand outside the spray is cleaned out to get final product at last.

Claims

1. aircraft is with the casting casting mold of compressor wheel volute, it is characterized in that: it mainly includes looses core, the sled template, counterdie, the ring-type loose piece, the closed chamber sand core, loose piece, fill out the molding sand core, spacious chamber sand core, little cylinder shape sand core, large cylinder shape sand core and patrix, described sled template, offer respectively corresponding centre bore on counterdie and the patrix, counterdie places on the sled template, loose core to be and be inverted in the centre bore that shape is inserted into sled template and counterdie, described ring-type loose piece is positioned at the centre bore of counterdie, the closed chamber sand core is fixed on the counterdie and its ring-type position is nested with on loosing core, the described molding sand core of filling out is fixed on the patrix by loose piece, described patrix places on the counterdie by aliging with the centre bore of counterdie, described worn-out chamber sand core is fixed on the bottom outside of large cylinder shape sand core, described little cylinder shape sand core is fixed on the lower inside of large cylinder shape sand core, and this large cylinder shape sand core is nested with in the centre bore of patrix.

2. aircraft according to claim 1 is with the casting casting mold of compressor wheel volute, and it is characterized in that: it also includes protective plate, and this protective plate cover is put on the closed chamber sand core.